Remove unneeded references

d3/d3-tests.ts

@@ -1,4 +1,4 @@
-/// <reference path="d3.d.ts" />
+
 
 //Example from http://bl.ocks.org/3887235
 interface TestPieChartData {

d3/plugins/d3.superformula-tests.ts

@@ -1,5 +1,5 @@
-/// <reference path="../d3.d.ts" />
-/// <reference path="d3.superformula.d.ts" />
+
+
 
 function superformula() {
     var size = 1000;

d3/plugins/index.d.ts

@@ -1,4 +1,4 @@
-/// <reference path="../d3.d.ts" />
+
 
 declare namespace d3 {
     export function superformula<T>(): Superformula<T>;